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1   /*
2    * Copyright 2001-2008 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   *
16   */
17  package org.apache.juddi.subscription.notify;
18  
19  import java.net.URISyntaxException;
20  import java.rmi.RemoteException;
21  import java.security.InvalidAlgorithmParameterException;
22  import java.security.InvalidKeyException;
23  import java.security.NoSuchAlgorithmException;
24  import java.util.Properties;
25  
26  import javax.crypto.BadPaddingException;
27  import javax.crypto.IllegalBlockSizeException;
28  import javax.crypto.NoSuchPaddingException;
29  import javax.mail.Address;
30  import javax.mail.Message.RecipientType;
31  import javax.mail.PasswordAuthentication;
32  import javax.mail.Session;
33  import javax.mail.Transport;
34  import javax.mail.internet.InternetAddress;
35  import javax.mail.internet.MimeMessage;
36  
37  import org.apache.commons.configuration.ConfigurationException;
38  import org.apache.commons.lang.StringEscapeUtils;
39  import org.apache.commons.logging.Log;
40  import org.apache.commons.logging.LogFactory;
41  import org.apache.juddi.api_v3.AccessPointType;
42  import org.apache.juddi.config.AppConfig;
43  import org.apache.juddi.config.Property;
44  import org.apache.juddi.config.ResourceConfig;
45  import org.apache.juddi.cryptor.CryptorFactory;
46  import org.apache.juddi.jaxb.JAXBMarshaller;
47  import org.apache.juddi.model.BindingTemplate;
48  import org.uddi.api_v3.DispositionReport;
49  import org.uddi.api_v3.Result;
50  import org.uddi.subr_v3.NotifySubscriptionListener;
51  import org.uddi.v3_service.DispositionReportFaultMessage;
52  
53  /**
54   * This class sends Email alerts when a specific subscription is tripped. 
55   * The following properties can be set in the juddiv3.xml, or as System params.
56   * 
57   * "mail.smtp.from", "mail.smtp.host", "mail.smtp.port", 
58   * "mail.smtp.socketFactory.class", "mail.smtp.socketFactory.fallback", "mail.smtp.starttls.enable",
59   * "mail.smtp.socketFactory.port","mail.smtp.auth","mail.smtp.user","mail.smtp.password"
60   *		
61   * The following properties can be set juddiv3.xml.
62   * 
63   * @author Kurt Stam
64   */
65  public class SMTPNotifier implements Notifier {
66  
67  	protected static final Log log = LogFactory.getLog(SMTPNotifier.class);
68  	protected String notificationEmailAddress = null;
69  	//String from = null;
70  	protected Session session = null;
71  	protected Properties properties = null;
72  
73  	protected final static String[] mailProps = {"mail.smtp.from", "mail.smtp.host", "mail.smtp.port", 
74  		"mail.smtp.socketFactory.class", "mail.smtp.socketFactory.fallback", "mail.smtp.starttls.enable",
75  		"mail.smtp.socketFactory.port","mail.smtp.auth","mail.smtp.user","mail.smtp.password","mail.debug"};
76  
77  	protected final Properties getEMailProperties() throws ConfigurationException {
78  		if (properties==null || properties.isEmpty()) {
79  			properties = new Properties();
80  			String mailPrefix = AppConfig.getConfiguration().getString(Property.JUDDI_EMAIL_PREFIX, Property.DEFAULT_JUDDI_EMAIL_PREFIX);
81  			if (! mailPrefix.endsWith(".")) mailPrefix = mailPrefix + ".";
82  			for (String key: mailProps) {
83  				if (AppConfig.getConfiguration().containsKey(mailPrefix + key)) {
84  					properties.put(key, AppConfig.getConfiguration().getProperty(mailPrefix + key));
85  				} else if (System.getProperty(mailPrefix + key) != null) {
86  					properties.put(key, System.getProperty(mailPrefix + key));
87  				}
88  			}
89  		}
90  		return properties;
91  	}
92  
93  	public SMTPNotifier(BindingTemplate bindingTemplate) throws URISyntaxException, Exception {
94  		super();
95  		if (!AccessPointType.END_POINT.toString().equalsIgnoreCase(bindingTemplate.getAccessPointType())) {
96  			log.error("smtp enpoints only support AccessPointType " + AccessPointType.END_POINT);
97  		}
98  		String accessPointUrl = bindingTemplate.getAccessPointUrl().toLowerCase();
99  		if (!accessPointUrl.startsWith("mailto:")) {
100 			log.warn("smtp accessPointUrl for bindingTemplate " + bindingTemplate.getEntityKey() + 
101 					" should start with 'mailto'");
102 			//TODO maybe update the user's bindingTemplate with the error?, and also validate setting onsave
103 		} else {
104 			notificationEmailAddress = accessPointUrl.substring(accessPointUrl.indexOf(":")+1);
105                         boolean auth=(getEMailProperties().getProperty("mail.smtp.auth", "false")).equalsIgnoreCase("true");
106 			if (auth) {
107 				final String username = getEMailProperties().getProperty("mail.smtp.user");
108 				String pwd = getEMailProperties().getProperty("mail.smtp.password");
109                                 //decrypt if possible
110 				if (getEMailProperties().getProperty("mail.smtp.password" + Property.ENCRYPTED_ATTRIBUTE, "false").equalsIgnoreCase("true"))
111 				{
112 					try {
113 						pwd = CryptorFactory.getCryptor().decrypt(pwd);
114 					} catch (NoSuchPaddingException ex) {
115 						log.error("Unable to decrypt settings",ex);
116 					} catch (NoSuchAlgorithmException ex) {
117 						log.error("Unable to decrypt settings",ex);
118 					} catch (InvalidAlgorithmParameterException ex) {
119 						log.error("Unable to decrypt settings",ex);
120 					} catch (InvalidKeyException ex) {
121 						log.error("Unable to decrypt settings",ex);
122 					} catch (IllegalBlockSizeException ex) {
123 						log.error("Unable to decrypt settings",ex);
124 					} catch (BadPaddingException ex) {
125 						log.error("Unable to decrypt settings",ex);
126 					}
127 				}
128 				final String password = pwd;
129                                 log.debug("SMTP username = " + username + " from address = " + notificationEmailAddress);
130                                 Properties eMailProperties = getEMailProperties();
131                                 eMailProperties.remove("mail.smtp.user");
132                                 eMailProperties.remove("mail.smtp.password");
133 				session = Session.getInstance(getEMailProperties(), new javax.mail.Authenticator() {
134 					protected PasswordAuthentication getPasswordAuthentication() {
135 						return new PasswordAuthentication(username, password);
136 					}
137 				});
138 			} else {
139                                 Properties eMailProperties = getEMailProperties();
140                                 eMailProperties.remove("mail.smtp.user");
141                                 eMailProperties.remove("mail.smtp.password");
142 				session = Session.getInstance(eMailProperties);
143 			}
144 		}
145 	}
146 
147 	public DispositionReport notifySubscriptionListener(NotifySubscriptionListener body) throws DispositionReportFaultMessage, RemoteException {
148 
149 		
150 
151 		try {
152                         log.info("Sending notification email to " + notificationEmailAddress + " from " + getEMailProperties().getProperty("mail.smtp.from", "jUDDI"));
153 			if (session !=null && notificationEmailAddress != null) {
154 				MimeMessage message = new MimeMessage(session);
155 				InternetAddress address = new InternetAddress(notificationEmailAddress);
156 				Address[] to = {address};
157 				message.setRecipients(RecipientType.TO, to);
158 				message.setFrom(new InternetAddress(getEMailProperties().getProperty("mail.smtp.from", "jUDDI")));
159 				//maybe nice to use a template rather then sending raw xml.
160 				String subscriptionResultXML = JAXBMarshaller.marshallToString(body, JAXBMarshaller.PACKAGE_SUBSCR_RES);
161 				message.setText(subscriptionResultXML, "UTF-8");
162                                 //message.setContent(subscriptionResultXML, "text/xml; charset=UTF-8;");
163 				message.setSubject(ResourceConfig.getGlobalMessage("notifications.smtp.default.subject") + " " 
164 						+ StringEscapeUtils.escapeHtml(body.getSubscriptionResultsList().getSubscription().getSubscriptionKey()));
165 				Transport.send(message);
166 			}
167                         else throw new DispositionReportFaultMessage("Session is null!", null);
168 		} catch (Exception e) {
169 			log.error(e.getMessage(),e);
170 			throw new DispositionReportFaultMessage(e.getMessage(), null);
171 		}
172 
173 		DispositionReport dr = new DispositionReport();
174 		Result res = new Result();
175 		dr.getResult().add(res);
176 
177 		return dr;
178 	}
179 }